基于改进杂草算法的地基整体破坏概率分析  

Analysis of the Overall Failure Probability Based on the Improved Weed Algorithm

作　　者：臧锐 ZANG Rui(Xi＇an Engineering Investigation ＆ Design Research Institute of China National Nonfen＇ous Metal Industry Co.Ltd.,Xi＇an Shaanxi 710054)

机构地区：[1]中国有色金属工业西安勘察设计研究院有限公司

出　　处：《河南科技》2018年第28期106-109,共4页Henan Science and Technology

摘　　要：针对基本杂草算法容易陷入局部最优且全局寻优精度不高的缺点，本文将差分进化算法引入其中，提高了算法的收敛速度和寻优精度。算例结果表明：利用可靠度概念进行地基破坏模式分析是一条行之有效的途径，为确定性计算方法提供了一个有效的验证手段。Aiming at the disadvantage that the basic weed algorithm was easy to fall into the local optimum and theglobal optimization accuracy was not high, this paper introduced the differential evolution algorithm into it, which im-proved the convergence speed and the optimization precision of the algorithm. The result of the example showed thatthe analysis of foundation failure mode using the concept of reliability was an effective way, which provided an effec-tive verification method for detemlinistie calculation.

关 键 词：地基失稳 可靠度 杂草算法 差分进化算法 

分 类 号：TU433[建筑科学—岩土工程]